On 12/5/2001, S.Amdt. 2170 incorporated H.R. 1140, the Railroad Retirement and Survivors' Improvement Act, as substitute text in H.R. 10, formerly the Comprehensive Retirement Security and Pension Reform Act. H.R. 10, as enacted into law, was the Railroad Retirement and Survivor's Improvement Act. In separate actions, provisions of the prior version of H.R. 10, the Comprehensive Retirement Security and Pension Reform Act (as passed in the House), were included in H.R. 1836, the Economic Growth and Tax Relief Reconciliation Act. S. 631 was the Senate version of the Comprehensive Retirement Security and Pension Reform Act. H.R. 1836 became P.L. 107-16 on 6/7/2001.